1. Rechargeable Hand Warmer: Pocket cute pet astronaut hand warmer, small and delicate, can be held with one hand, and can be carried in a travel bag or pocket. Great for outdoor, travel, work, hunting, sports, fishing, hiking, skiing, camping, biking2. Ambient Light Function: This heated hand warmer not only brings you warmth in the cold winter, but also acts as an ambient light when the switch is turned on in the dark night.3. Quick Preheating: It only takes 5 seconds to preheat, and the heating temperature can be changed every time the switch is pressed; the temperature adjustment in three gears, the first gear is 35C, the second gear is 45C, and the third gear is 55C. The usable time is about 90-180 minutes.4. Lanyard Design: The portable silicone lanyard design is very convenient to carry and store.5. Winter Ideal Gift: This is a must-have to get through cold winters, especially for the hyperthermia needs of those with Raynauds arthritis. Hand warmers are a great gift for Thanksgiving, Christmas, New Years, Birthdays and Anniversary gifts for loved ones, kids, family and friends, and ideal for outdoor enthusiasts.